Fiber Optic Network Cable: Choosing and Handling
Fibre patch cords look fragile and are more robust than they appear, but the end faces are genuinely delicate.
Quick Answer
| Attribute | What to match |
|---|---|
| Fibre type | Single mode or multimode, to match the optics |
| Connector | LC, SC or other, to match the equipment |
| Polish | UPC or APC, matching the module |
| Simplex or duplex | Duplex for most data links |
| Length | Shortest that reaches, with slack |
Handling Rules
Dust caps
Keep them on until the moment of connection. Dust on an end face causes loss.
Bend radius
Respect the minimum bend radius printed on the cable.
End faces
Never touch them. Oils from fingers cause permanent loss.
Cleaning
Use proper cleaning tools, not clothing or tissues.
Storage
Coil loosely with caps on, or use a spool.
Selection Steps
- Identify the optics at both ends.
- Match fibre type and polish.
- Choose the connector to match the equipment.
- Measure the run and order the right length.
- Test the link before closing the installation.
Real-World Applications
- Server room patching.
- Campus building links.
- Industrial networks.
- Test equipment connections.
Related Guides
For connector types, read fiber optic connector types. For fibre basics, see what is fiber optic cable. For types, start with single mode vs multimode fiber.
FAQ
Are fibre patch cords fragile?
The cable is robust. The end faces are delicate and must stay clean.
Can I touch the end face?
No. Skin oils cause permanent loss at that point.
Do I need to clean new cables?
Inspect and clean if needed, even on new parts.
What happens if I bend it too far?
Loss at that point, and possibly permanent damage.